/**
 * Copyright (C) 2010 the author
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.linguamathematica.translate4j;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static java.lang.String.format;

import static java.util.Arrays.asList;

class Base
{
	static void ensure(final boolean condition, final String format, final Object... arguments)
	{
		if (!condition)
		{
			throw new IllegalArgumentException(format(format, arguments));
		}
	}

	static void ensureNotNull(final Object object, final String argumentName)
	{
		if (object == null)
		{
			throw new NullPointerException(format("%s cannot be null", argumentName));
		}
	}

	static void ensureResponse(final boolean condition, final String message, final int httpStatus, final String reason)
	{
		if (!condition)
		{
			throw new ResponseException(message, httpStatus, reason);
		}
	}

	static <T> List<T> newList(final T[] items)
	{
		return new ArrayList<T>(asList(items));
	}

	static <K, V> Map<K, V> newMap()
	{
		return new HashMap<K, V>();
	}

}
